Problem with the color of the blocks on the server (Minecraft)

here I put colored blocks black and red stone bricks, and they become red - ordinary, and black - multicolor just bricks, on the screenshots it looks like it was and how it became
http://f5.s.qip.ru/~10bCiS92U.png http: //f6.s.qip.ru/~10bCiS92V.png
for these blocks that the ID is constantly changing among themselves, I don’t understand